some of the views are available already from the aircraft dev's but most of the time including me use Flight1 Ezdok camera addon http://www.flight1.com/products.asp?product=ezdockcam ... it allows you to move to any desired angle you like...inside and outside the aircraft.
Hope that helps.
Tom.

the whole idea of N.I is so it forces Nvidea to accept the settings you want and anything you do now in the Nvidea control panel does not work. Ensure in your FSX settings that Anti-Aliasing is switched off... here are my N.I settings...
once you make these changes try not to open Nvidea control panel as it seems reset fsx to original settings.
Hope this helps.
Tom.